766137906 has 32 divisors (see below), whose sum is σ = 1757452800. Its totient is φ = 247140720.

The previous prime is 766137887. The next prime is 766137917. The reversal of 766137906 is 609731667.

766137906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227161 + ... + 230508.

It is an arithmetic number, because the mean of its divisors is an integer number (54920400).

Almost surely, 2^766137906 is an apocalyptic number.

766137906 is an abundant number, since it is smaller than the sum of its proper divisors (991314894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

766137906 is a wasteful number, since it uses less digits than its factorization.

766137906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457711 (or 457705 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 766137906 is about 27679.1962672329. The cubic root of 766137906 is about 915.0306681470.

The spelling of 766137906 in words is "seven hundred sixty-six million, one hundred thirty-seven thousand, nine hundred six".